Ussing enum in processing switch case statment - enums

Question

I am trying to use "enum" in processing, in order to use it inside an "switch case" statment.
I am working on Processing 3.3.6.
I placed the "enum" statment in a new tab, names "Status.java".
I declared on the enum iteslf in the main tab.
I cant inicialize the enum that was creted with a value.
here is my code:
"Satus.java" tab:
enum State {A,B,C};
"Main" tab:
State state1=A;
void setup()
{
}
void draw()
{
println(state1);
switch (state1)
{
case A:
println("A");
case B:
println("B");
case C:
println("C");
}
}

Answer 1

You might want to explicitly access State.A when assigning the variable.
E.g.
State state1=State.A;
instead of
State state1=A;
and remember to use the break statement, otherwise you'll hit all cased.
Here's a basic version of you code above in a single sketch file:
enum State {A,B,C};
State state1=State.A;
void setup()
{
}
void draw()
{
println("state1",state1);
switch (state1)
{
case A:
println("A");
break;
case B:
println("B");
break;
case C:
println("C");
break;
default:
println("default: undefined state");
break;
}
}

Answer 2

First, you need to tell the status tab that it is a class:
static class status {
enum State {A,B,C};
}
In processing you'll need to use static class token, rather than public class, as you would in Java.
At the moment, the main class does not know what a State object is. This is why Processing cannot resolve / initialise your variable state1.
Tell it to look for the type in the status class like so:
Status.State state1 = Status.State.A;
Finally, don't forget to add break; after each case in the switch statement otherwise a match for A will also print B and C (switch statements fall through).
switch (state1) {
case A :
println("A");
break;
case B :
println("B");
break;
case C :
println("C");
break;
}